PDF malware analysis — malicious · c161931436a2bb75

MALICIOUS

PDF

164.5 KB

MD5: 725ba9cbbc5ff52efdc2d42c41201037 SHA-1: e965cad45669e7731493706162e087bf8204db8c SHA-256: c161931436a2bb7591343da816652ba36e8c45450da2f5b74c7f0c042c253e71

78 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and LibTIFF. This suggests the document is designed to achieve arbitrary code execution upon opening. An embedded file was also detected, which is often used to deliver secondary payloads. The document body is heavily obfuscated and unreadable, providing no direct clues about the lure.

Heuristics 4

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `e3e8e2cfb7614e695705b226701b8797ee0da5c253685eff5cfcc10d9cd7324a`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x51	13454 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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